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Volume 9 Issue 1 (January, 2021)

Original Articles

A Cephalometric evaluation of dentoskeletal variables and ratios in three different facial types
Umer Ul Hassan Hakeem, M.S. Sidhu, Mona Prabhakar

Objective: To study the variation of dental and skeletal cephalometric variables found in horizontal, average and vertical growth patterns and compute the ratio of maxillary 1st molar dentoalveolar height to ramal height. Methods: Pretreatment lateral cephalograms were drawn from the Department of Oral Medicine and Radiology of patients who have reported for orthodontic treatment. Cephalograms showing cervical vertebral maturation stage 5 without facial asymmetry, without canting of the occlusal plane were chosen. Analysis was done using Nemostudio Software 2019 from Nemotec Madrid, Spain. A total of 33 parameters were evaluated. Results: Horizontal growth patterns showed longer and wider rami and symphysis, greater posterior facial height, but decreased total anterior facial height, in particular, decreased lower anterior facial height when compared with average and vertical growers. Upper molar height/ ramal height, (UMH/RH) and total molar height/ramal height (TMH/RH) new ratios evaluated for this study, were significantly different in the three growth patterns. Conclusion: The new ratio UMH/RH and TMH/RH were found to be higher in the vertical growth pattern at 0.56 and 1.35 respectively and decreased to 0.46 and 1.12 respectively towards the horizontal growth pattern. Keywords: Facial types, Dentoskeletal variables, Cephalometric evaluation.

 
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